'Fukuro Nui' is a term applied to the finishing method of the Futon's Heri (edge) on a Bogu. There are generally two methods of finishing Heri, Fukuro Nui and Kado Kawa. Fukuro in Japanese means 'Bag' and Nui is to sew, stitch or embroider. Thus, Fukuro Nui can be thought of as the edges being 'sewn like a bag'. This is more labour intensive than Kado Kawa, as is requires the Futon to made individually for each specific Bogu, so that the seam can be sewn. Whereas Kado Kawa can be applied to Futon that are cut from a longer, mass-produced piece, as they are simply 'capped off' with leather.
For this reason it was previously the case that Fukuro Nui was generally only found on bespoke hand made Bogu. But now it has become more popular on machine stitched Bogu sets too.
The main advantages of Fukuro Nui are that it is thought to be more aesthetically pleasing, and more practically - as it requires less leather - it results in an overall lighter Bogu.
All of the Bogu offered by Miyako Kendogu features Fukuro Nui Heri on the Men Futon as standard.
